In this tutorial, we will introduce how to create full screen window in Tkinter, and how to toggle or quit full screen mode. Windows root.attributes('-fullscreen', True) to Create Full Screen Mode in Tkinter tk.Tk.attributes sets platform specific attributes. The attributes in Windows are, -alpha -transparentcolor -disabled -fullscreen -toolwindow -topmost -fullscreen specifies whether the window is full-screen mode or not. import tkinter as tk class Fullscreen_Example: def __init__(self): self.window = tk.Tk() self.